Jurss' Workshop

[Jurss]

FYI - dedicated topic will follow, when I will do final touches and will be able to make good pictures

[Jurss]

Thinking about TC26 started to reinvent wheel :)

Don't know yet, if it will turn in contest entry. But this was some quick idea, POC, which I could use.

On 10/8/2023 at 10:17 PM, Bluehose said:

did you made this project go on

Just fount out :D , that I made something finished 

[MOC] Monster (but small) truck - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums

[Jurss]

Some idea for TC26

this would be steered track section

then would come non steered, over which could be some tipping bed

That steering section has issues, mainly with that drive. It would need some reduction before track drive gear/wheel. Also geometry is not the best. It is under some stress.

Most probably won't have time to solve that :(

[pleegwat]

If there are multiple track sections, I presume that turntable is not going to connect to a freely rotating superstructure. Does the drive need to go through the turntable at all?

[Jurss]

Idea really was to turn front track section.

I think, I have seen it on some soviet crap.

[Jurss]

[Jurss]

There is long time idea in my mind about smaller GT3RS . Main stopper is smaller engine. 

Some idea

But it is just 1 stud shorter. Some option could be, if there would have been 5L bar. Maybe there is something else?

Also was thinking to use as piston/rod this 

but I don't have them. Then everything could be set narrower on this

[Thirdwigg]

Sorry @Jurss, I should have looked at this thread first. 

This is similar to the first idea I had as well. I wonder if it might work better with this part.

This way you are not constrained my bar length.

This issue with this design is still the size. You still need 8 (functionally 9) modules of width, which is a lot of space in a 15 wide car. I secretly I want the option to work for a WRX as well, so steering space will be needed.

[Jurss]

1 hour ago, Thirdwigg said:

I wonder if it might work better with this part.

Yes, it shoud work, Ithink. But still, width then is still an issue. 

There should be some few wrenches in my sons pile of lego, but could not find any. With those it could be possible to get narrower width. Yes, it would look strange, but main engine principle could be covered,

[2GodBDGlory]

58 minutes ago, Jurss said:

Yes, it shoud work, Ithink. But still, width then is still an issue. 

There should be some few wrenches in my sons pile of lego, but could not find any. With those it could be possible to get narrower width. Yes, it would look strange, but main engine principle could be covered,

I'd be quite interested to see how it would work with those wrenches! I know I have one, but it might be in the bin of minifigure parts at my parent's house, so I'm not sure if I'm able to experiment with it right now

[Thirdwigg]

1 hour ago, 2GodBDGlory said:

I'd be quite interested to see how it would work with those wrenches! I know I have one, but it might be in the bin of minifigure parts at my parent's house, so I'm not sure if I'm able to experiment with it right now

I have a couple, so I'll if I can test it. The handle is a little short considering the stroke length, so it may bind in the connector as it cycles.

[Jurss]

10 hours ago, Thirdwigg said:

The handle is a little short

and it has some grooves

[Divitis]

Great minds think alike! I just got a bag of these to use as Engine connecting rods in a mid scale (9 studs long) V12.

I'll keep you posted on the progress. Meanwhile, if you need me to experiment with the part on your behalf, just let me know what you wosh to know. :)

[Jurss]

9 hours ago, Divitis said:

I'll keep you posted on the progress.

OK, let's see what you come up with.

Are you from Latvija?

[Divitis]

@Jurss

This works smoothly. And also allows for a piston of sort to be attached (note the round 1x1 plate)

However, I cannot think of a way to have the left and right side work together without offsetting them 1/2 stud. Ideas?

 

PS: I'm Italian.

[Jurss]

31 minutes ago, Divitis said:

without offsetting them 1/2 stud. Ideas?

Maybe it would work even without offset, as there is pretty big play? Especially, if they were really on opposite sides. Making that offset could ruin compacteness lenhgtwise.

32 minutes ago, Divitis said:

I'm Italian.

OK, but it would be also pretty good latvian username.

[Divitis]

There isn't enough play unfortunately.

However, your comment made me think, what if I added some?

And this worked - replacing the axle with a 2L bar.

 

But this way, all rods would go up and down at the same time, which isn't realistic.

So I introduced a flex bar and it looks very promising.

It can probably only be driven by one side but that shouldn't be an issue for a fake engine anyway.

Also, a 'flower' 1x1 round tile fits perfectly on top of the wrenches/rods. It simulates cylinders nicely.

 

I'll work on proper bracing and add the other wrenches.

Then should probably open up a thread to share the technique with everyone.

 

[Jurss]

13 hours ago, Divitis said:

But this way, all rods would go up and down at the same time, which isn't realistic

For those two it is OK. In some flat layout, it would work as expected.

13 hours ago, Divitis said:

Then should probably open up a thread to share the technique with everyone.

Yes, that would be proper way, to continue with this. 

[pow]

This piston configuration is perfect to do VW's VR6 Engine. It's an inline V6. As there is a good article on wikipedia i think it's the best to leave out the description on how it works and looks and just add a link: https://en.wikipedia.org/wiki/VR6_engine

[Jurss]

Had issues with inspiration for some time. TC27 started something, didn't finished. Also for TC28 don't have ideas. 

But ordered new "carnkshaft" with pistonrods. So started again some beach buggy, but in smaller size than previous.

Of course, started from engine, which pretty fast turned in to rear axle assembly

Then got to front axle

needed some kind of compact suspension

[1gor]

Buggy looks interesting; 5-6 years ago I wanted to make one in 1:15 scale but no engine parts were available. Leter I even bought Mustang wheels to make it narrow and for Christmass I bought Kawasaki and you beat me...nice to see that someone had similar ideas as me (only I plan 49.5 x 20 truck tire rear and 49.5 x 14 front...and my rear axle idea was more flat without "hanging" wheels like on Tatras...

Edited January 19 by 1gor

[Jurss]

Yes, new "crankshafts" and pistons offer finally possibility to make flat engine in this scale (yes there was some option, I think, with some "counterweights")

I think, I will also "flatten" rear suspension, if it won't be compressed enough under weight, it is too much at the moment.

Next needs to be some porsche with flat 6 ;)

[Jurss]

Almost no progress (somehow no inspiration) on buggy, just some idea for side

 

But then came idea, if 'new' suspension triangles are possible to use with shock absorber. And this is the result

Steering linkage needs to be adjusted, maybe those latest with 90' orientation could help here.

Hub

As You can see, it is littlebit illegal, as I need to fit in the middle 1L pin with stud, and connect both black parts with grey one, where wheel axle is inserted.

Here is some kind of explode view

[Aurorasaurus]

21 minutes ago, Jurss said:

As You can see, it is littlebit illegal, as I need to fit in the middle 1L pin with stud, and connect both black parts with grey one, where wheel axle is inserted.

You can make it legally using 2 of this part and a 3L frictionless pin. I really like this, it seems promising.

[Jurss]

2 hours ago, Aurorasaurus said:

You can make it legally

Yes, of course, I forgot I have those parts :) 

I will try to make some 2L version then, so it could work with smaller wheels, as that 3L version is usable only with wheels starting from D 49.5